Arguments

 

display-id

   OpenVMS usage:identifier
   type:         longword (unsigned)
   access:       read only
   mechanism:    by reference

   Specifies the virtual display from which characters will be
   erased. The display-id argument is the address of an unsigned
   longword that contains the display identifier.

   The display identifier is returned by SMG$CREATE_VIRTUAL_DISPLAY.
 

number-of-characters

   OpenVMS usage:longword_signed
   type:         longword (signed)
   access:       read only
   mechanism:    by reference

   Specifies the number of characters to be replaced with blanks.
   The number-of-characters argument is the address of a signed
   longword that contains the number of characters to be replaced
   with blanks.
 

start-row

   OpenVMS usage:longword_signed
   type:         longword (signed)
   access:       read only
   mechanism:    by reference

   Specifies the row on which the erase operation begins. The start-
   row argument is the address of a signed longword that contains
   the number of the row at which the erasure is to begin.
 

start-column

   OpenVMS usage:longword_signed
   type:         longword (signed)
   access:       read only
   mechanism:    by reference

   Specifies the column on which the erase operation begins. The
   start-column argument is the address of a signed longword that
   contains the number of the column at which the erasure is to
   begin.